Play-Uno is a unique way to play the game because it offers a wide range of options for play via AI player. You can either register for a free account or play anonymously, though you won't be able to be eligible for the leaderboard if you don't enter.
Uno Freak accounts are available. Register as fast as you can to snatch a nickname you want to have! You gain points by playing and winning against other real players (No bots and unregistered players). Your points are saved and shown on the Uno Freak Ranking.